I believe the answer is B
Answer:
A bar code reader scanner captures the pattern in a barcode and sends it to the computer, where special software translates the pattern into meaningful data.
Explanation:
A barcode reader is a handheld device that captures and reads information that is contained in a bar code. It consists of a scanner, a decoder and a cable that connects the barcode reader into a computer. This scanner works by directing a beam or red light across the black and white elements of a barcode. This amount of light energy that is reflected back is measured and converted into electrical energy which is then converted into readable data by the decoder and forwarded to a computer.
Answer:
You need to first use the Sum function to add up all the costs of September.
Then divide each September cost by the grand total that you got. After that format the last column to be percentages.
Look at the attached file for the formulas used.
Information commination technology :)
Answer:
The C++ code is given below with appropriate comments
Explanation:
//Remove this header file if not using visual studio.
#include "stdafx.h"
//Include the required header files.
#include <iostream>
//Use for maths function.
#include <cmath>
using namespace std;
//Define main function
int main()
{
// Define the variables
double targetValue = 0.3333;
double sensorReading = 0.0;
//Perform the opeartion.
sensorReading = 1.0 / 3.0;
// Get the absolute floating point value and
// Check up to 4 digits.
if (fabs(sensorReading - targetValue) < 1E-4)
{
//Print equal if the values are close enough.
cout << "Equal" << endl;
}
else
{
//Print not equal if the values are not
//close enough.
cout << "Not equal" << endl;
}
system("pause");
//Return the value 0.
return 0;
}
